Base unit for breast pump



FIG. 1 is a perspective view showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of icons on the buttons on top of the article is included for the purpose of illustrating structural environment and forms no part of the claimed design. 

CLAIM The ornamental design for a base unit for breast pump, as shown and described. 